Traffic security early warning method of traffic control system on highway

A highway and traffic safety technology, applied in traffic flow detection, anti-collision systems, etc., can solve problems such as predicting the time and location of traffic accidents, providing traffic safety warnings, and rear-end collisions.

A highway and traffic safety technology, applied in traffic flow detection, anti-collision systems, etc., can solve problems such as predicting the time and location of traffic accidents, providing traffic safety warnings, and rear-end collisions.

CN101551945BInactive Publication Date: 2010-10-06SOUTHEAST UNIV
0 Cites 0 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Traffic security early warning method of traffic control system on highway
  • Traffic security early warning method of traffic control system on highway
  • Traffic security early warning method of traffic control system on highway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] refer to figure 1 with figure 2 , the expressway traffic safety warning method provided by the present invention is realized like this:

[0040] Step 1: Install vehicle detectors every 1 kilometer or so on the expressway, and record the mileage of each vehicle detector from the starting point of the expressway, and then connect each vehicle detector to the computer so that the computer can obtain the information of each vehicle The output data of the detectors, at the same time, according to the order of the mileage of each vehicle detector from small to large, sequentially compile the serial numbers of the vehicle detectors, the serial numbers are: 1, 2, 3, ..., n, n is the vehicle detection The sequence number of the device is a natural number, and the vehicle detector is used to collect traffic flow and traffic speed data, and sends information packets including traffic flow and traffic speed data to the computer every 30 seconds,

[0041] Step 2: set up vehicle d...

Embodiment 2

[0071] Such as figure 1 As shown, before the expressway traffic safety warning, firstly deploy vehicle detectors on the expressway, and record the mileage of each vehicle detector from the starting point of the expressway. At the same time, according to the order of the mileage of each vehicle detector from small to large, Carry out serial numbering to the vehicle detector in turn, its serial number is: 1, 2, 3, ..., n, n is a natural number. Then, each vehicle detector is connected with the computer, so that the computer can receive the traffic flow detection data regularly sent out by the vehicle detector. Next, a vehicle detector data storage table and a safety warning scheme table are established in the computer and initialized. The safety warning plan table is composed of several data units, each data unit includes key upstream detector number, key upstream detector mileage, traffic speed collected by key upstream detector, key downstream detector number, key downstream ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a traffic security early warning method of a traffic control system on a highway; vehicle detectors are arranged on the highway; the vehicle detectors of all the vehicles are connected with computers so as to lead the computers to obtain output data of the vehicle detectors periodically and establish a data storage list of the vehicle detectors and a security early warningproposal list. After receiving an information packet, the data in the security early warning proposal list is removed; the data storage list of the vehicle detectors is updated according to the content of the received information packet; all data units in the data storage list of the vehicle detectors are searched one by one; key up stream and downstream vehicle detectors meeting the condition are determined; the time and position of possible occurrence of traffic accidents are calculated according the current collected data of the key stream and downstream vehicle detectors and writing the time and the position are written into the security early warning proposal list; if the security early warning proposal list does not have data in the period, the security early warning is not released; or early warning is released to the highway management department according to the time and the position of possible occurrence of traffic accidents in the security early warning proposal list; therefore, periodic and cycle early warning is executed.

Description

Technical field: [0001] The invention relates to a traffic safety early warning method applied in a highway traffic control system, which is used to predict the time and place where traffic accidents may break out on the highway, so as to send an alarm to the highway traffic management and control center in advance before the accident occurs Effect. Background technique: [0002] In modern expressway traffic management, vehicle detectors all over the expressway have been used as traffic detection means, and are widely used in the detection of expressway traffic flow and traffic congestion. [0003] At present, the expressway traffic management and control systems widely used at home and abroad have the function of detecting the speed and flow of traffic flow at a specific road section location through vehicle detectors, and judging the traffic conditions on the road section based on this, and timely discovering the location of traffic incidents. A traffic incident alert is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
06 Oct 2010
Publication
CN101551945B
IPC
G08G1/16; G08G1/01
Inventors
王昊; 王炜